A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6030288 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 47 48 54 66 72 81 88 94 99 108 132 141 144 162 176 188 198 216 243 264 282 297 324 376 396 423 432 486 517 528 564 594 648 729 752 792 846 891 972 1,034 1,128 1,188 1,269 1,296 1,458 1,551 1,584 1,692 1,782 1,944 2,068 2,256 2,376 2,538 2,673 2,916 3,102 3,384 3,564 3,807 3,888 4,136 4,653 4,752 5,076 5,346 5,832 6,204 6,768 7,128 7,614 8,019 8,272 9,306 10,152 10,692 11,421 11,664 12,408 13,959 14,256 15,228 16,038 18,612 20,304 21,384 22,842 24,816 27,918 30,456 32,076 34,263 37,224 41,877 42,768 45,684 55,836 60,912 64,152 68,526 74,448 83,754 91,368 111,672 125,631 128,304 137,052 167,508 182,736 223,344 251,262 274,104 335,016 376,893 502,524 548,208 670,032 753,786 1,005,048 1,507,572 2,010,096 3,015,144 and 6,030,288, with no remainder.
Since 6,030,288 cannot be divided by just 1 and 6,030,288, it is not a prime number.